JM
James Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this James Mcdonough across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 6-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston, City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1929 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Mcdonough | Son | — | 11 | ~1929 |
| Francis Mcdonough | Son | — | 4 | ~1936 |
| Lawrence Mcdonough | Son | — | 8 | ~1932 |
| James Mcdonough | Head | — | 45 | ~1895 |
| John Mcdonough | Son | — | 6 | ~1934 |
| Mary Mcdonough | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 11
Suffolk-County, Massachusetts · implied b. ~1929 — 6 household members
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston, City |
| 1935 Residence (County) | Suffolk |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcdonough
Son · 1940 · age 11 · b. ~1929 · Massachusetts
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Sibling
Lawrence Mcdonough
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mcdonough
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonough
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01682-00651)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Spiers | 23 | Son | Assistant Cashier | England |
| 2 | Ronald C. Spiers | 19 | Son | — | Scotland |
| 3 | Cancelled Spiers | None | — | — | — |
| 4 | Joseph H. Barbieri | 52 | Head | Landscape Gardener | Italy |
| 5 | Elizabeth Barbieri | 53 | Wife | — | Italy |
| 6 | Peter Barbieri | 19 | Son | Landscape Gardener | Massachusetts |
| 7 | Emma Barbieri | 15 | Daughter | — | Massachusetts |
| 8 | Carlo Barbieri | 14 | Son | — | Massachusetts |
| 9 | Elizabeth Barbieri | 10 | Daughter | — | Massachusetts |
| 10 | James Mcdonough | 45 | Head | Store Manager | Irish Free State |
| 11 | Mary Mcdonough | 37 | Wife | — | Irish Free State |
| 12 | James Mcdonough THIS PERSON | 11 | Son | — | Massachusetts |
| 13 | Lawrence Mcdonough | 8 | Son | — | Massachusetts |
| 14 | John Mcdonough | 6 | Son | — | Massachusetts |
| 15 | Francis Mcdonough | 4 | Son | — | Massachusetts |
| 16 | Joseph Corr | 30 | Head | Letter Carrier | Massachusetts |
| 17 | Alice Corr | 31 | Wife | — | Connecticut |
| 18 | Carol Corr | 10 | Daughter | — | Massachusetts |
| 19 | Rita Corr | 8 | Daughter | — | Massachusetts |
| 20 | Lawrence Corr | 6 | Son | — | Massachusetts |
| 21 | John Corr | 4 | Son | — | Massachusetts |
| 22 | Robert Corr | 2 | Son | — | Massachusetts |
| 23 | Alfred J. Acton | 46 | Head | Machinist | Canada-French |
| 24 | Dorothy E. Acton | 39 | Wife | — | Massachusetts |
| 25 | Elizabeth Acton | 15 | Daughter | — | Massachusetts |
| 26 | Marjorie Acton | 13 | Daughter | — | Massachusetts |
| 27 | Winifred Acton | 8 | Daughter | — | Massachusetts |
| 28 | Agnes J. Acton | 67 | Mother | — | Irish Free State |
| 29 | Allen Lalime | 45 | Head | Salesman | Massachusetts |
| 30 | Susan Lalime | 43 | Wife | — | Massachusetts |
| 31 | Francis Lalime | 19 | Son | Pinboy | Massachusetts |
| 32 | Allen Lalime | 17 | Son | — | Massachusetts |
| 33 | Raymond Lalime | 14 | Son | — | Massachusetts |
| 34 | Charles Lalime | 11 | Son | — | Massachusetts |
| 35 | Joan Lalime | 7 | Daughter | — | Massachusetts |
| 36 | James Lalime | 3 | Son | — | Massachusetts |
| 37 | Ralph Lalime | 1 | Son | — | Massachusetts |
| 38 | Eugene J. Daly | 56 | Head | Salesman | Irish Free State |
| 39 | Gertrude Daly | 53 | Wife | — | Canada-English |
| 40 | Margaret M. Daly | 26 | Daughter | Salesgirl | Massachusetts |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)